Process for treating cotton textiles to impart a linen-like appearance thereto



Patentw Dec 29, wfidl raa mun MARIE JLGUIS GlTSTAVE mBElRT, 0F fiTElURB, nnan nesrunora Elm dLlLPTrElIUl-L'QE VEIRGJE, 0F PARIS, JE'BANCE.

IPEQCEBS FOR TREATING- COTT%N TEXTILES TO IMPART fl. LINEN-LUKE APPEJMEt/rllhl' fllit THERETO.

.W'e Drawing.

To all whom it may concern Be it known that I, RENE MARIE Louis GUSTAYE Hiinnn'r, a citizen of the Republic of France, residing at Gisors, Eure, France, haveinvented certain new and useful Imrovements in a Process for Treatirw Cot appearance thereto, and essentially consists in scouring the textile material with sodium carbonate (Na CO and thereafter treating it With dilute'sulphuric acid under strictly determined conditions as regards time, temperature and concentration.

It is essential that the fabric be scoured with sodium carbonate (Na CC under suitableconditions if the desired linen efiect is to be fully realized. To this end, the nap or pile of the cotton fabric is completely removed by an effective burning or singeing operation; the material is then ridded of its. facing, rinsed and then lixiviated in boiling sodium carbonate (N21 CO in. a suitable apparatus and in a continuous operation, whereafter the said fabric is slightly chlorinated and then dried. When the scouring operation is completed, the material is treated with dilute sulphuric acid; this operation may be carried out by means of an fabric with acid must be between 14 and 16 seconds.

The concentration and the period of impregnation may be slightlyv varied between the said limits in accordance with the nature of the material and is determined for each particular case.

Application filed April 7, 19%. Serial Nb. 21,445.

The acid treatment is followed by the dressing operation. The fabric is Well rinsed to remove any trace of said acid andis then dried on a tenter-frame to free the threads which the acid treatment has caused to adhere to each other to a greater or lesser e2 tent, more particularly in light textiles, the material being then mercerized according to ordinary practice. scouring operation is completed by treating the textile With sodium carbonate (l la CO chlorine and acid. Whereafter it is dried. preferably under simultaneous treatment on the tenter-frame With a little soap and glycerine. calendered and folded.

Of course, the various stages of theprocess may be modified to suit particular cases,

more particularly as regards dressing, With-- out departing from the spirit of the invention and while still Working within the characteristic conditions of acid treatment and scouring With sodium carbonate (lFIa QQ) according to the said invention. Thus for After inercerizing, the

The fabric is then moistened, clothexample when treating rather coarse textiles fabric, treating it in a bath of sulphuric acid having; a temperature not exceeding 15 C. and a concentration between 53 and 535 Billie period of impregnation. being between i l and 18 seconds; the two last-mentioned conditions being varied slightly bea tween the said limits in accordance with the nature of the material; rinsingi'he material after the acid treatment. and thcrea fter subjecting it to a dressing operation.

In testimony whereof I aflizr my signature.

mint amine LOUl5 charm/retrain. 

